ABC of Safety in the Biological Sciences
BARIUM SULPHATE (BaSO4)
SYNONYMS
None known.
CHARACTERISTICS
White powder, no odour.
INCOMPATIBILITY
Barium sulphate is incompatible with aluminium powder with which
it causes a violent "thermite" reaction at high temperatures.
HEALTH HAZARD DATA
Barium sulphate is regarded as being nontoxic and is often used
as an opaque medium in radiography of the alimentary system. It
will irritate eyes and the respiratory tract.
HANDLING and GENERAL PRECAUTIONS
Avoid eye contact.
Avoid inhalation of the powder.
Wear protective clothing to avoid skin or eye contact. A long
sleeved laboratory coat or gown, rubber gloves, safety goggles
and a face mask as a minimum standard.
TREATMENTS
Skin not generally considered to be a hazard.
Eyes immediately wash the affected eye with large amounts of
water until all evidence of the chemical has been removed
(approximately 15 minutes). If irritation persists seek medical
advice.
Inhalation there should be temporary discomfort only. Remove
from the area of exposure and allow to rest.
Ingestion not considered to be a hazard.
STORAGE
Store in a cool, dry atmosphere away from heat and aluminium
powder.
DISPOSAL: The waste may be used as fill in reclaiming low areas
or may be dumped in a landfill.
ENVIRONMENT.
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